Description
The Triconex 2071H (part number 7400313-100) is a High-Density Chassis Assembly / Interface Component manufactured by Schneider Electric (Triconex) for the Tricon Triple Modular Redundant (TMR) Safety Instrumented System (SIS).
Engineered for SIL 3 safety applications—such as Emergency Shutdown (ESD), Fire & Gas (F&G), and Burner Management Systems (BMS)—the 2071H chassis assembly houses high-density I/O modules, power distribution backplanes, and triplicated bus interconnects, maintaining strict physical and electrical separation between channels A, B, and C.
Technical Specifications
| Parameter | Specification |
| Manufacturer | Schneider Electric / Triconex (Invensys) |
| System Platform | Tricon TMR Safety Instrumented System (v9 / v10 / v11) |
| Model / Ordering Code | 2071H |
| Part / Assembly Number | 7400313-100 |
| Component Type | High-Density Main/Expansion Chassis Backplane Assembly |
| Safety Integrity Level | Certified up to SIL 3 (IEC 61508 / IEC 61511 compliance) |
| Redundancy Architecture | Triple Modular Redundant (TMR) — 2-out-of-3 (2o3) voting backplane bus |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Operating Humidity | 5% to 95% non-condensing |
| Mounting Format | Standard 19-inch EIA rack chassis frame / panel mount |
Core Features & Operating Capabilities
- Triplicated Bus Interconnect: Integrates isolated trace paths for individual Main Processors (Channel A, Channel B, Channel C), preventing single-point physical or electrical failures from disabling the safety system.
- SmartSlot Online Module Hot-Swapping: Supports live, online removal and replacement of active I/O cards and power supplies without degrading safety function execution.
- Heavy-Duty Conformal Coating: Shielded chassis backplane logic is treated with protective coating to withstand industrial contaminants, moisture, and corrosive gas environments.
- Dual Power Distribution Railing: Distributes redundant dual 24 V DC system power rails directly across the backplane to ensure continuous operation during single power feed outages.
Related Triconex Hardware Components
- 3008 / 3009 — Tricon Main Processor Modules (TMR architecture).
- 8310 / 8311 / 8312 — Tricon High-Density Power Supply Modules (24 V DC / 120 V AC / 230 V AC).
- 3721 / 3700A — Tricon 115V AC/DC Analog / Digital Input Modules.
- 8110 / 8111 — Tricon Main / Expansion Chassis Racks.
